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细节
                                        
                                            An Art deco amethyst and diamond brooch/pendant 
Dual use: the brooch with a geometric surmount of faceted amethyst and millegrain-set diamond detail, to a large polished amethyst drop with similarly-set diamond cap; as a pendant with similarly-set diamond surmount loop, converted from a pendant, circa 1925
                                        
                                    Dual use: the brooch with a geometric surmount of faceted amethyst and millegrain-set diamond detail, to a large polished amethyst drop with similarly-set diamond cap; as a pendant with similarly-set diamond surmount loop, converted from a pendant, circa 1925